If she really hopes to start playing a normal human, Hillary Clinton is going to have to do better than the alien shtick.

OK, technically she was only talking about Area 51 the other night with Jimmy Kimmel. You know, the top-secret Air Force base in Nevada where the feds supposedly hide and test captured UFO technology.

“I would like us to go into those [secret] files and hopefully make as much of that public as possible,” she said. “If there’s nothing there, let’s tell people there’s nothing there.”

Set aside just how a future President Clinton might leak top-secret info. (Maybe have her staff remove the “classified” header and then fax it out?) The real problem here is that she keeps coming back to this chestnut whenever she’s trying to be “fun.”

In New Hampshire back in January, she promised to “get to the bottom” of this whole alien business, including Area 51.

And the joke isn’t even original: Bill Clinton made similar cracks as president back in the ’90s. Heck, the would-be First Gentleman even used a related riff when he sat down with Kimmel last year, saying that meeting aliens “may be the only way to unite us in this incredibly divided world of ours.”

OK, Hillary has changed her tune slightly: She told Kimmel she won’t spill the beans on Area 51 if “it’s a security threat to national security.”

Guess she’s just a little embarrassed by the news of all the classified info she was illicitly keeping on her home-brewed e-mail server.